Latest Bokeh 1.2.0 do not work with latest JupyterLab 2.0.1

Both Bokeh and JupyterLab are from conda, today.

Conda environment.yml file to reproduce: https://github.com/Ouranosinc/PAVICS-e2e-workflow-tests/blob/ddc9c67e6b02f2e71f0328d71a8a4039257d20ea/docker/environment.yml

Steps to reproduce:

git clone https://github.com/Ouranosinc/PAVICS-e2e-workflow-tests.git
cd PAVICS-e2e-workflow-tests/docker
git checkout ddc9c67e6b02f2e71f0328d71a8a4039257d20ea
docker build -t reproduce-build-error .

Build error from the docker build command above:

Step 10/18 : RUN jupyter labextension install @jupyter-widgets/jupyterlab-manager     && jupyter serverextension enable voila --sys-prefix     && 
jupyter labextension install @jupyter-widgets/jupyterlab-manager jupyter-leaflet     && jupyter labextension install @bokeh/jupyter_bokeh         
 ---> Running in 78af5a055ca3                                                                                                                     
Building jupyterlab assets (build:prod:minimize)                                                                                                  
The extension "nbdime-jupyterlab" is outdated.                                                                                                    
                                                                                                                                                  
Enabling: voila                                                                                                                                   
- Writing config: /usr/local/envs/birdy/etc/jupyter                                                                                               
    - Validating...                                                                                                                               
      voila 0.1.21 OK                                                                                                                             
Building jupyterlab assets (build:prod:minimize)
The extension "nbdime-jupyterlab" is outdated.

An error occured.
ValueError: The extension "@bokeh/jupyter_bokeh" does not yet support the current version of JupyterLab.


Conflicting Dependencies:
JupyterLab                        Extension      Package
>=2.0.2 <2.1.0                    >=1.1.3 <2.0.0 @jupyterlab/application
>=2.0.2 <2.1.0                    >=1.1.3 <2.0.0 @jupyterlab/apputils
>=2.0.2 <2.1.0                    >=1.1.3 <2.0.0 @jupyterlab/notebook
>=2.0.1 <2.1.0                    >=1.4.0 <2.0.0 @jupyterlab/rendermime-interfaces
>=5.0.2 <5.1.0                    >=4.1.1 <5.0.0 @jupyterlab/services
See the log file for details:  /tmp/jupyterlab-debug-t1jvjykq.log
The command '/bin/sh -c jupyter labextension install @jupyter-widgets/jupyterlab-manager     && jupyter serverextension enable voila --sys-prefix
    && jupyter labextension install @jupyter-widgets/jupyterlab-manager jupyter-leaflet     && jupyter labextension install @bokeh/jupyter_bokeh'
returned a non-zero code: 1

Content of /tmp/jupyterlab-debug-t1jvjykq.log:

$ cat jupyterlab-debug-t1jvjykq.log
Node v13.9.0

Yarn configuration loaded.
> /usr/local/envs/birdy/bin/npm pack @bokeh/jupyter_bokeh
npm notice
npm notice 📦  @bokeh/jupyter_bokeh@1.2.0
npm notice === Tarball Contents ===
npm notice 570B    lib/extension.js
npm notice 728.3kB dist/index.js
npm notice 240B    lib/index.js
npm notice 546B    lib/manager.js
npm notice 73B     lib/metadata.js
npm notice 1.9kB   lib/plugin.js
npm notice 4.0kB   lib/renderer.js
npm notice 3.2kB   lib/widgets.js
npm notice 1.4kB   package.json
npm notice 3.2MB   dist/index.js.map
npm notice 2.9kB   README.md
npm notice 25B     lib/extension.d.ts
npm notice 91B     lib/index.d.ts
npm notice 530B    lib/manager.d.ts
npm notice 587B    lib/plugin.d.ts
npm notice 1.4kB   lib/renderer.d.ts
npm notice 1.1kB   lib/widgets.d.ts
npm notice 1.5kB   LICENSE.txt
npm notice === Tarball Details ===
npm notice name:          @bokeh/jupyter_bokeh
npm notice version:       1.2.0
npm notice filename:      bokeh-jupyter_bokeh-1.2.0.tgz
npm notice package size:  1.0 MB
npm notice unpacked size: 4.0 MB
npm notice shasum:        833672a1b4cc5b1a8b59b69fa1f96ae4de8d0831
npm notice integrity:     sha512-NlBGXFL7ZllYB[...]39d0Ct1F1dZSg==
npm notice total files:   18
npm notice
bokeh-jupyter_bokeh-1.2.0.tgz

Fetching URL: https://registry.yarnpkg.com/@bokeh%2Fjupyter_bokeh
Fetching URL: https://registry.yarnpkg.com/@bokeh%2Fjupyter_bokeh
Traceback (most recent call last):

  File "/usr/local/envs/birdy/lib/python3.7/site-packages/jupyterlab/debuglog.py", line 47, in debug_logging
    yield

  File "/usr/local/envs/birdy/lib/python3.7/site-packages/jupyterlab/labextensions.py", line 93, in start
    ans = self.run_task()

  File "/usr/local/envs/birdy/lib/python3.7/site-packages/jupyterlab/labextensions.py", line 149, in run_task
    for i, arg in enumerate(self.extra_args)

  File "/usr/local/envs/birdy/lib/python3.7/site-packages/jupyterlab/labextensions.py", line 149, in <listcomp>
    for i, arg in enumerate(self.extra_args)

  File "/usr/local/envs/birdy/lib/python3.7/site-packages/jupyterlab/commands.py", line 388, in install_extension
    return handler.install_extension(extension, pin=pin)

  File "/usr/local/envs/birdy/lib/python3.7/site-packages/jupyterlab/commands.py", line 603, in install_extension
    info = self._install_extension(extension, tempdir, pin=pin)

  File "/usr/local/envs/birdy/lib/python3.7/site-packages/jupyterlab/commands.py", line 1550, in _install_extension
    raise ValueError(msg)

ValueError: The extension "@bokeh/jupyter_bokeh" does not yet support the current version of JupyterLab.


Conflicting Dependencies:
JupyterLab                        Extension      Package
>=2.0.2 <2.1.0                    >=1.1.3 <2.0.0 @jupyterlab/application
>=2.0.2 <2.1.0                    >=1.1.3 <2.0.0 @jupyterlab/apputils
>=2.0.2 <2.1.0                    >=1.1.3 <2.0.0 @jupyterlab/notebook
>=2.0.1 <2.1.0                    >=1.4.0 <2.0.0 @jupyterlab/rendermime-interfaces
>=5.0.2 <5.1.0                    >=4.1.1 <5.0.0 @jupyterlab/services

Exiting application: jupyter

[bryevdv]

As an aside I’ll just say it’s truly unfortunate that the PhosphorJS creator decided to throw a fit and generate so much useless and unnecessary work for dozens of projects and maintainers, but we are doing the best we can to respond as quickly as we can.

[tlvu]

@bryevdv thanks, much appreciated the effort.